Title should be up to 9 words and to contain the keywords you want to optimize. The other pages from your website should contain diffrent titles, optimized for diffrent or ralted keywords. You can repeat the keyword in title..

Description is important mostly when search engines show the results and by description people choose or not to visit your site.

SEO Friendly Links

SEO Friendly Links are used to put the keywords in the URL, making it also more user friendly.
Links of your website should looke like http://www.example.com/page/article.html
They can be done using Apache Mod Rewrite in .htaccess file.

H1 Tag<h1>Dictionar online</h1>
Dictionar online

H1 tag is one of the most important tags in the website. Be sure it contains the keyword you want to optimize.